公开(公告)号：US20090296263A1

公开(公告)日：2009-12-03

申请号：US12408682

申请日：2009-03-21

申请人： Takashi Kida ,  Susumu Yoshida ,  Isamu Tomita ,  Takeyori Hara

发明人： Takashi Kida ,  Susumu Yoshida ,  Isamu Tomita ,  Takeyori Hara

IPC分类号： G11B21/02

CPC分类号： G11B5/5547

摘要： An information storage apparatus includes a disc-shaped recording medium in which control marks aligned in a predetermined rule are recorded, a head contacting or approaching a recording medium surface to reproduce/record information of the recording medium and detecting the control marks, a head driving section holding the head to move the head in a direction of coming near or away to/from a recording medium rotation center, a driving force control section controlling a driving force for head driving section, a driving time control section controlling a driving time for the head driving section using an interval of the detection of the plural control marks as a time unit, and a driving force correcting section obtaining a difference between an ideal interval based on the rule of the control marks and an actual interval of the control marks to correct the control of the driving force based on the difference.

摘要翻译： 信息存储装置包括盘状记录介质，其中记录了以预定规则排列的控制标记，接触或接近记录介质表面的头以再现/记录记录介质的信息并检测控制标记，头驱动 保持头部沿着与记录介质旋转中心靠近或离开的方向移动头部;驱动力控制部分，控制头部驱动部分的驱动力;驱动时间控制部分，控制驱动时间 头部驱动部分，其使用多个控制标记的检测间隔作为时间单位，以及驱动力校正部，其基于控制标记的规则和控制标记的实际间隔获得理想间隔之间的差异，以校正 根据差异控制驱动力。

公开(公告)号：US07492543B2

公开(公告)日：2009-02-17

申请号：US11895464

申请日：2007-08-24

申请人： Nobuyuki Mitsunaga ,  Masahide Kanegae ,  Hiroyuki Tanaka ,  Isamu Tomita ,  Masao Kondo

发明人： Nobuyuki Mitsunaga ,  Masahide Kanegae ,  Hiroyuki Tanaka ,  Isamu Tomita ,  Masao Kondo

IPC分类号： G11B21/02

CPC分类号： G11B19/041 ,  G11B5/6064 ,  G11B5/607

摘要： Upon recording, a clearance control unit performs preheating by an added control value (BR) of a base heater control value B and an adjustment heater control value R and switches that to value B when it reaches a target sector to perform write. Upon reproduction, preheating is performed by the value (BR) and the value (BR) is maintained when it reaches a target sector to perform read. A correction processing unit detects contact between the head and a medium surface while increasing the value R from a predetermined initial value Ro, and sets a new calculated base heater control value B, and value Ro as the adjustment heater control value R. Write assist adjustment in which the measured adjustment heater control value R is adjusted to a heater control value that improves characteristic deterioration immediately after recording is started wherein preheating is switched to write heating is performed.

摘要翻译： 在记录时，间隙控制单元通过基本加热器控制值B的附加控制值（BR）和调节加热器控制值R执行预热，并且当其到达目标扇区以进行写入时切换到值B. 在再现时，通过值（BR）进行预热，并且当其到达目标扇区以进行读取时，维持值（BR）。 校正处理单元在从预定的初始值Ro增加值R的同时，检测头与介质面之间的接触，并将新的计算的基础加热器控制值B和值Ro设置为调节加热器控制值R.写入辅助调整 其中测量的调节加热器控制值R被调节到加热器控制值，该加热器控制值在开始其中预热被切换到写入加热的记录开始之后立即改善特性劣化。

公开(公告)号：US20050088775A1

公开(公告)日：2005-04-28

申请号：US10691336

申请日：2003-10-22

申请人： Kazunori Mori ,  Isamu Tomita ,  Tatsuhiko Kosugi ,  Yoshiyuki Kagami

发明人： Kazunori Mori ,  Isamu Tomita ,  Tatsuhiko Kosugi ,  Yoshiyuki Kagami

IPC分类号： G11B5/55 ,  G11B5/596

CPC分类号： G11B5/5547

摘要： A recording apparatus capable of securely reading out data for causing a head to follow along circular tracks set virtually. Therefore, on-track control along the virtual tracks is possible by the conversion data on the discoid record medium even when, for example, the printed circuit board in a recording apparatus has been replaced.

摘要翻译： 一种记录装置，其能够安全地读出用于使磁头沿着实际设置的圆形轨迹跟随的数据。 因此，即使例如记录装置中的印刷电路板已被更换，通过盘状记录介质上的转换数据也可以沿着虚拟轨道进行磁道轨迹控制。

公开(公告)号：US20050041322A1

公开(公告)日：2005-02-24

申请号：US10920746

申请日：2004-08-18

申请人： Yoshiyuki Kagami ,  Isamu Tomita ,  Shuichi Hashimoto

发明人： Yoshiyuki Kagami ,  Isamu Tomita ,  Shuichi Hashimoto

IPC分类号： G11B20/10 ,  G11B5/55 ,  G11B5/596 ,  G11B21/08 ,  G11B21/10 ,  G11B21/02

CPC分类号： G11B5/5547 ,  G11B5/59633 ,  G11B21/083

摘要： There is provided a head control method controlling move of a head on a discoidal recording medium including the steps of: partitioning the discoidal recording medium which has position information recorded thereon at radially equal spacing into a plurality of zones; and demodulating the position information using a coefficient set for each of the zones.

摘要翻译： 提供了一种控制盘在盘形记录介质上的头的移动的头控制方法，包括以下步骤：将其上记录有位置信息的盘状记录介质以径向相等的间隔划分成多个区; 以及使用针对每个区域设置的系数来解调位置信息。

公开(公告)号：US5903411A

公开(公告)日：1999-05-11

申请号：US599808

申请日：1996-02-12

申请人： Isamu Tomita ,  Tatsuro Sasamoto ,  Yoshihiro Nakao

发明人： Isamu Tomita ,  Tatsuro Sasamoto ,  Yoshihiro Nakao

IPC分类号： G11B21/10 ,  G11B5/596

CPC分类号： G11B21/106

摘要： A storage device includes a predetermined number of disks on which servo information is recorded, and a predetermined number of heads. The heads are positioned on target cylinders on the basis of the servo information read from the disks through the heads, so that information recording/reproducing can be performed. The disks include outer guard band areas located further out than data areas and inner guard band areas located further in than the data area. Analysis information concerning disk surfaces are recorded on the outer guard band areas. Each of the outer guard band areas is segmented into first and second outer guard band areas in a radial direction. The analysis information is recorded on the first outer guard band area. The servo information for an off-track correction is recorded on the second outer guard band area.

摘要翻译： 存储装置包括其上记录有伺服信息的预定数量的盘和预定数量的头。 基于通过磁头从磁盘读取的伺服信息，磁头位于目标气缸上，从而可以执行信息记录/再生。 这些磁盘包括比数据区域更远的外部保护带区域和位于数据区域之外的内部保护带区域。 有关磁盘表面的分析信息被记录在外保护带区域上。 每个外部保护带区域沿径向分割成第一和第二外部保护带区域。 分析信息被记录在第一外保护带区域上。 用于偏离磁道校正的伺服信息被记录在第二外保护带区域上。

公开(公告)号：US20100149674A1

公开(公告)日：2010-06-17

申请号：US12713050

申请日：2010-02-25

申请人： Isamu TOMITA

发明人： Isamu TOMITA

IPC分类号： G11B27/36 ,  G11B21/02

CPC分类号： G11B5/59633 ,  G11B5/59638 ,  G11B19/045

摘要： According to one embodiment, a method of writing servo information comprises: moving a head at a predetermined pitch in the radial direction of a storage disk to write servo information to each radial direction position in the circumferential direction of the storage disk; detecting a positional deviation value of the head while the servo information is being written to the radial direction position and determining whether the positional deviation value exceeds a predetermined value; and writing, when the positional deviation value exceeds the predetermined value, the position of defective servo information where the positional deviation value exceeds the predetermined value to a predetermined position in the radial direction of the storage disk.

摘要翻译： 根据一个实施例，一种写入伺服信息的方法包括：以存储盘的径向方向以预定间距移动磁头，以将伺服信息写入存储盘圆周方向上的每个径向位置; 当伺服信息被写入径向位置时，检测头部的位置偏差值，并确定位置偏差值是否超过预定值; 并且当所述位置偏差值超过所述预定值时，将所述位置偏差值超过所述预定值的故障伺服信息的位置写入所述存储盘的径向方向上的预定位置。

公开(公告)号：US20060280485A1

公开(公告)日：2006-12-14

申请号：US11345470

申请日：2006-02-01

申请人： Ryuki Kubohara ,  Isamu Tomita

发明人： Ryuki Kubohara ,  Isamu Tomita

IPC分类号： H04N5/00

CPC分类号： G11B19/00 ,  G11B5/5526

摘要： To reduce power consumption of an information storage device, a control circuit for the information storage device stops the supply of a formatter clock or an ECC unit clock simultaneously with a seek operation. When a clock stop time has elapsed by the time obtained by subtracting at least a time required for restarting the formatter or the ECC unit from a seek time, the control circuit restarts the supply of the formatter clock or the ECC unit clock.

公开(公告)号：US07050250B2

公开(公告)日：2006-05-23

申请号：US10787064

申请日：2004-02-25

申请人： Tatsuhiko Kosugi ,  Isamu Tomita ,  Kazunori Mori ,  Yoshiyuki Kagami ,  Ryuki Kubohara

发明人： Tatsuhiko Kosugi ,  Isamu Tomita ,  Kazunori Mori ,  Yoshiyuki Kagami ,  Ryuki Kubohara

IPC分类号： G11B5/09

CPC分类号： G11B27/3027 ,  G11B2220/20

摘要： There are provided a storage apparatus and a computer-readable recording medium, on whose storage areas, servo frames are arranged at uniform intervals in a spoke-like pattern. Each of the servo frames has an index bit storing section storing, as an index bit, part of an index pattern, which is operable to identify a storage area. The apparatus and the recording medium have a storage area recognizing unit for recognizing the storage areas based on the index bits, which are obtained by an index bit obtaining unit. The index bits, stored one in each of the index bit storing sections of the servo frames, are adapted to form, when being sequentially arranged, an index bit string in which such an index pattern repeatedly appears.

摘要翻译： 提供了一种存储装置和计算机可读记录介质，其存储区域以伺服帧以均匀的间隔以轮辐状图案布置。 每个伺服帧具有索引位存储部分，其存储可用于识别存储区域的索引图案的一部分作为索引位。 设备和记录介质具有存储区域识别单元，用于基于由索引位获取单元获得的索引位来识别存储区域。 存储在伺服帧的每个索引位存储部分中的索引位适于在顺序排列时形成重复出现这种索引图案的索引位串。

公开(公告)号：US5926337A

公开(公告)日：1999-07-20

申请号：US824658

申请日：1997-03-24

申请人： Kenji Itou ,  Isamu Tomita ,  Toshiki Kimura

发明人： Kenji Itou ,  Isamu Tomita ,  Toshiki Kimura

IPC分类号： G11B21/10 ,  G11B5/55 ,  G11B5/596

CPC分类号： G11B5/59627 ,  G11B5/5534

摘要： Disclosed is an off-track correcting method for a disk apparatus for measuring an off-track correction value by use of servo data on a data surface. The data surface on a disk medium is recorded with servo data for an off-track measurement. The data head seals a cylinder position recorded with the off-track measurement servo data. It is determined whether or not this cylinder position is a sensitivity abnormal position of the cylinder. The data head reads a first item of servo data after offset-moving the data head by a predetermined quantity on inner and outer sides of the disk medium, corresponding to detecting that the data head is located in the sensitivity abnormal position. An off-track correction value in the cylinder position is calculated from the plural pieces of first servo data read finally in a plurality of reading positions. This, even when enhancing a track density, the precise off-track correction value can be thereby measured.

摘要翻译： 公开了一种用于通过使用数据表面上的伺服数据来测量偏离轨道校正值的盘装置的偏离轨道校正方法。 用磁带测量的伺服数据记录磁盘介质上的数据表面。 数据头密封记录有离轨测量伺服数据的气缸位置。 确定该气缸位置是否是气缸的灵敏度异常位置。 在检测到数据头位于灵敏度异常位置中时，数据头在磁盘介质的内侧和外侧偏移 - 移动数据头之后读取第一项伺服数据。 从多个读取位置中最终读取的多条第一伺服数据计算出气缸位置的偏离轨迹校正值。 这样，即使提高轨道密度，也可以测定精确的越野校正值。

公开(公告)号：US20090245057A1

公开(公告)日：2009-10-01

申请号：US12411708

申请日：2009-03-26

申请人： Susumu YOSHIDA ,  Tatsurou SASAMOTO ,  Isamu TOMITA

发明人： Susumu YOSHIDA ,  Tatsurou SASAMOTO ,  Isamu TOMITA

IPC分类号： G11B20/18

CPC分类号： G11B20/1816 ,  G11B5/5582 ,  G11B2220/2516

摘要： A fault detection circuit, for detecting a fault condition associated with a sensor (wherein non-fault detection signals output by the sensor include high frequency noise components), includes: an input unit to receive a raw signal from the sensor and to provide a corresponding detection signal; and a determination unit to determine if the detection signal includes components in significant amounts corresponding to the non-fault high frequency noise components, and to output an indication that the fault condition is satisfied if the detection signal does not include components in significant amounts corresponding to the non-fault high frequency noise components.

摘要翻译： 一种用于检测与传感器相关联的故障状况的故障检测电路（其中由传感器输出的非故障检测信号包括高频噪声分量）包括：输入单元，用于从传感器接收原始信号并提供对应的 检测信号; 以及确定单元，用于确定检测信号是否包括对应于非故障高频噪声分量的显着量的分量，并且如果检测信号不包括对应于非故障高频噪声分量的显着量的分量，则输出满足故障条件的指示 非故障高频噪声分量。